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Bug 288 - [TV52015900] TTriSurfaceSeries with TeeOpenGL. If I activate transparency into thi...
Summary: [TV52015900] TTriSurfaceSeries with TeeOpenGL. If I activate transparency int...
Status: RESOLVED FIXED
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Canvas (show other bugs)
Version: unspecified
Hardware: All All
: Normal major
Target Milestone: ---
Assignee: Steema Issue Manager
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-11-18 17:39 EST by yeray alonso
Modified: 2013-12-19 10:06 EST (History)
1 user (show)

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

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Description yeray alonso 2013-11-20 10:36:31 EST 
TTriSurfaceSeries with TeeOpenGL. If I activate transparency into this serie, only the last drawn triangle is transparent.
http://www.teechart.net/support/viewtopic.php?f=3&t=12815 [created:2011-11-18T17:39:38.000+01:00 reported by:yeray@steema.com reported in version:2011.04.41118 (TeeChart VCL)]
Comment 1 david berneda 2013-12-19 10:06:11 EST 
Fixed. 
Transparency was being activated but never deactivated (OpenGL Canvas only).

The reason is TriSurface (and Surface) series activate transparency (canvas BeginBlending)only once, at the beggining of the painting methods (DrawAllValues), instead of creating/freeing a blending object for each "cell" in the series.